US2025353755A1PendingUtilityA1

Separation of bacl2 from cacl2 brine solution

Assignee: CHEMOURS CO FC LLCPriority: Jul 17, 2019Filed: Aug 4, 2025Published: Nov 20, 2025
Est. expiryJul 17, 2039(~13 yrs left)· nominal 20-yr term from priority
B01J 2220/52B01J 20/282B01J 20/28061B01J 20/28016B01J 20/06B01D 15/08C01F 11/32C01F 11/24C01F 11/005
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Claims

Abstract

The present invention relates to a process for separating BaCl2 from a CaCl2) brine solution.

Claims

exact text as granted — not AI-modified
1 .- 16 . (canceled) 
     
     
         17 . A mixture comprising CaCl 2 ) brine, BaCl 2  and a titanium containing material, wherein the titanium containing material comprises TiO 2 . 
     
     
         18 . The mixture of  claim 17 , wherein the titanium containing material is hydrated. 
     
     
         19 . The mixture of  claim 17 , wherein the titanium containing material further comprises Ti(OH) 4 . 
     
     
         20 . The mixture of  claim 17 , wherein the titanium containing material comprises granules. 
     
     
         21 . The mixture of  claim 17 , wherein the titanium containing material comprises powder. 
     
     
         22 . The mixture of  claim 17 , wherein the titanium containing material has a surface area above 180 m 2 /g. 
     
     
         23 . The mixture of  claim 17 , having a pH of from 3 to 9. 
     
     
         24 . The mixture of  claim 17 , having a pH of from 5.9 to 6.9. 
     
     
         25 . The mixture of  claim 17 , having a pH of about 6.5. 
     
     
         26 . The mixture of  claim 17 , wherein the mixture CaCl 2 ) has concentration between 10% to 30% CaCl 2 ) at ambient temperature, based on the total weight of the brine solution. 
     
     
         27 . The mixture of  claim 17 , wherein the mixture contains 0.1 wt. % to 5 wt. % of the titanium containing material. 
     
     
         28 . The mixture of  claim 17 , wherein at least some of the BaCl 2  has been absorbed by the titanium containing material.

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